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Excessive Thirst — Polydipsia

Oct 30, 2013 - 0 comments
Tags:

thirst

,

dehydration

,

Bleeding

,

Diabetes

,

Kidney disease



Common causes of excessive thirst:

- Dry mouth (false thirst)
- Dehydration
- Untreated diabetes mellitus type 1
- Congestive heart failure
- Liver cirrhosis
- Chronic kidney failure
- Diabetes insipidus due to a brain disorder (pituitary tumor) or kidney disorder (polycystic kidney disease)
- Hormonal disorders: hyperthyroidism, hyperparathyroidism, Cushing's syndrome, hyperaldosteronism (in adrenal tumor)
- Caffeine intoxication
- Medications: steroids, certain antibiotics, antidepressants, lithium
- Ecstasy (MDMA)

Rare causes of polydipsia:
- Severe bleeding (external or internal)
- Shock (severe dehydration, severe allergic reaction, sepsis)
- Dry mouth in Sjögren's syndrome
- Compulsive water drinking in schizophrenia and other mental disorders

More causes of polydipsia:

TESTS may include:
- Blood and urine electrolytes
- Investigations to find the underlying disease


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